Results 171 to 180 of about 1,810 (215)
Some of the next articles are maybe not open access.
2010
One of the major difficulties in the early settlement of the Moon was the actual process of construction of the structures. Various concepts were explored – from inflatables to self-deploying – in order to minimize the time astronauts would need to spend on the surface doing construction work.
openaire +1 more source
One of the major difficulties in the early settlement of the Moon was the actual process of construction of the structures. Various concepts were explored – from inflatables to self-deploying – in order to minimize the time astronauts would need to spend on the surface doing construction work.
openaire +1 more source
NASA's Centennial Challenges Contributions to ISRU
47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition, 2009In-Situ Resource Utilization (ISRU) will be critically important for long-term sustainability of operations on the Moon or Mars. NASA is seeking to advance technologies needed for ISRU through Centennial Challenges -NASA’s prize competitions for the citizen inventor.
Douglas Comstock, Andrew Petro
openaire +1 more source
2012
By utilizing such indigenous resources, the amount of materiel that must be brought from Earth might be reduced, thus potentially reducing the cost of a space mission.
openaire +1 more source
By utilizing such indigenous resources, the amount of materiel that must be brought from Earth might be reduced, thus potentially reducing the cost of a space mission.
openaire +1 more source
2012
The major opportunities to use ISRU on Mars include propellants for ascent from the Martian surface and water and oxygen for life support. Mars soil contains oxygen but processing the soil is difficult.
openaire +1 more source
The major opportunities to use ISRU on Mars include propellants for ascent from the Martian surface and water and oxygen for life support. Mars soil contains oxygen but processing the soil is difficult.
openaire +1 more source
2012
The lunar-soil particle size distribution is very broad. In addition, because of the irregular particle shapes, the specific surface area is high: approximately 0.5m2/g. In fact, lunar soil particles have about eight times more surface area than an assemblage of spheres with the equivalent particle size distribution.
openaire +1 more source
The lunar-soil particle size distribution is very broad. In addition, because of the irregular particle shapes, the specific surface area is high: approximately 0.5m2/g. In fact, lunar soil particles have about eight times more surface area than an assemblage of spheres with the equivalent particle size distribution.
openaire +1 more source
ISRU-Based Development of a Lunar Water Astroparticle Observatory
57th International Astronautical Congress, 2006Abstract Lunar Water Astroparticle Observatories are proposed to be fabricated at the Lunar North and South Poles by use of Lunar in situ resources. These observatories will consist, initially, of a 10 m × 10 m × 10 m basin excavated, to be filled with 1000 metric tons of water from the in situ resources at the Polar Regions.
Alex Ignatiev +2 more
openaire +1 more source
An Asteroid Regolith Database for ISRU
AbstractWe have developed the first database of asteroid regolith properties: fifty asteroids so far, to aid space resource utilisation workers. The physical parameters: grain density, grain size, near surface bulk density and porosity are provided of a collection of the asteroids.Amara L. Graps +3 more
openaire +1 more source
Solar Thermal Power System for Lunar ISRU Applications: Result of ISRU Analog Test, Mauna Kea, HI
AIAA SPACE 2010 Conference & Exposition, 2010This paper discusses the development, deployment and operation of the optical waveguide (OW) solar thermal power system ISRU applications at the ISRU analog test site on Mauna Kea, HI. In this solar thermal system, solar radiation is collected by the concentrator array which transfers the concentrated solar radiation to the OW transmission line made of
Takashi Nakamura, Benjamin Smith
openaire +1 more source
A Fixed Mars ISRU Base for Accelerated Exploration
AIAA SPACE 2009 Conference & Exposition, 2009We have re-examined in situ resource utilization (ISRU) from the perspective of the extraordinarily successful on-going Mars Exploration Program, more than 30 years after we first alerted the science communities to the break -through advantages ISRU offered for Mars round-trip missions.
Robert Ash, Warren Dowler, Giulio Varsi
openaire +1 more source
A Nuclear Powered ISRU Mission to Mars
AIP Conference Proceedings, 2006Space exploration has always been drastically constrained by the masses that can be launched into orbit; Hence affordable planning and execution of prolonged manned space missions depend upon the utilization of local. Successful in‐situ resources utilization (ISRU) is a key element to allow the human presence on Mars or the Moon.
openaire +1 more source